I have found FW dips aren't very effective against very hardy critters. A mantis is definately one in that catagory. Quarryshark gave the best advice I have seen. Just leave the rock out for a few minutes. 5 out of the water wont hurt your polyps. If you have the resourses put the rock on eggcrate over a bucket or bowl of tank water. He should eventually get tired of holding his water (breath) and plop onto the water.

HTH R-

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I wish I had a nickel for every miracle that you easily tricked me into. -Chris Robinson

Well, I give up and he is now in a ten with his polyp rock. He is a determined beast. No amount of time out of the water was gonna get him to bail. I guess he would rather go down with the ship than to jump out. He'll slip up though at some point. He's gotta come out to look for food eventually. Thanks everyone.

I don't need to sacrifice a snail. He eagerly takes thawed shrimp or dried krill. I'm just gonna give him a few days to get really hungry. Then tempt him. I guess since he put me to the trouble of setting up another tank, I'll have to keep him. It's just a bare bones tank for now so I'll set him up right if he cooperates.